C++ (Cpp) mesh_create_derived Examples

Example #1

File: collada_utils.cpp Project: Andrewson3D/blender-for-vray

Mesh *bc_get_mesh_copy(Scene *scene, Object *ob, BC_export_mesh_type export_mesh_type, bool apply_modifiers, bool triangulate)
{
	Mesh *tmpmesh;
	CustomDataMask mask = CD_MASK_MESH;
	Mesh *mesh = (Mesh *)ob->data;
	DerivedMesh *dm = NULL;
	if (apply_modifiers) {
		switch (export_mesh_type) {
			case BC_MESH_TYPE_VIEW:
			{
				dm = mesh_create_derived_view(scene, ob, mask);
				break;
			}
			case BC_MESH_TYPE_RENDER:
			{
				dm = mesh_create_derived_render(scene, ob, mask);
				break;
			}
		}
	}
	else {
		dm = mesh_create_derived((Mesh *)ob->data, NULL);
	}

	tmpmesh = BKE_mesh_add(G.main, "ColladaMesh"); // name is not important here
	DM_to_mesh(dm, tmpmesh, ob, CD_MASK_MESH, true);
	tmpmesh->flag = mesh->flag;

	if (triangulate) {
		bc_triangulate_mesh(tmpmesh);
	}
	BKE_mesh_tessface_ensure(tmpmesh);
	return tmpmesh;
}

Example #2

int sculpt_get_first_deform_matrices(Scene *scene, Object *ob, float (**deformmats)[3][3], float (**deformcos)[3])
{
	ModifierData *md;
	DerivedMesh *dm;
	int a, numVerts= 0;
	float (*defmats)[3][3]= NULL, (*deformedVerts)[3]= NULL;
	MultiresModifierData *mmd= get_multires_modifier(scene, ob, 0);
	int has_multires = mmd != NULL && mmd->sculptlvl > 0;
	int numleft= 0;

	if(has_multires) {
		*deformmats= NULL;
		*deformcos= NULL;
		return numleft;
	}

	dm= NULL;
	md= modifiers_getVirtualModifierList(ob);

	for(; md; md= md->next) {
		ModifierTypeInfo *mti= modifierType_getInfo(md->type);

		if(!modifier_isEnabled(scene, md, eModifierMode_Realtime)) continue;

		if(mti->type==eModifierTypeType_OnlyDeform) {
			if(!defmats) {
				Mesh *me= (Mesh*)ob->data;
				dm= mesh_create_derived(me, ob, NULL);
				deformedVerts= mesh_getVertexCos(me, &numVerts);
				defmats= MEM_callocN(sizeof(*defmats)*numVerts, "defmats");

				for(a=0; a<numVerts; a++)
					unit_m3(defmats[a]);
			}

			if(mti->deformMatrices) mti->deformMatrices(md, ob, dm, deformedVerts, defmats, numVerts);
			else break;
		}
	}

	for(; md; md= md->next) {
		ModifierTypeInfo *mti= modifierType_getInfo(md->type);

		if(!modifier_isEnabled(scene, md, eModifierMode_Realtime)) continue;

		if(mti->type==eModifierTypeType_OnlyDeform)
			numleft++;
	}

	if(dm)
		dm->release(dm);

	*deformmats= defmats;
	*deformcos= deformedVerts;

	return numleft;
}